Dynamo-electric machine.



Patented Dec. l6, I902. 0. F. CONKLIN. DYNAMO ELECTRIC MACHINE.

(Application filed Aug. 11, 1902.)

2 Sheets-Shoat I.

(No Model.)

ZZZ \QW @mm TORNEYS Patented Dec. l6, I902.

0. F. CUNKLIN. E DYNAMU ELECTRIC MACHINE. I

A "at'o d UNITED "STATES PATENT OFFICE.

OLIVER F. CONKLIN, OF SPRINGFIELD, OHIO.

DYNAMO-ELECTRIC MACHINE.

SPECIFICATION forming part of Letters Patent N 0. 716,193, datedDecember 16, 1902. Application filed August 11, 1902. SerielNo.119.229.N0 model.)

To all whom, it ntay concern:

Be it known that -I, OLIVER F. OONKLIN, a citizen of the UnitedStates,residing at Sp ringfield, in the county of Clark and State ofOhio, have invented certain new and useful Improvements inDynamo-Electric Machines, of which the following is a specification.

My invention relates to improvements in dynamo-electric machines, andrelates more specifically to the armature and the windings of the coilsandformation of the drum, so as to obviate the objections due to heatingof the armature, and for the purpose of constructing an improved form ofarmature.

My improvement may be used regardless of the character of the armatureas to its polar arrangement, whether bipolar or multipolar machines. Ihave shown the wires formed into detachable form-wound coils and adaptedfor use on a drum formed with a series of disks, and my form-wound coilsare shown of equal halves, though other forms of coils might be usedwhether form-made 0r hand-made and whetheradapted for disk or ringarmatures or drum-armatures.

In the drawings, Figure 1 is a view in perspective of the armature. Fig.2'is a top view of the drum with the series of disks assembled thereon.Fig. 3 is a detail of the fan. Fig. 4: is a detail of the disk, and Fig.5 a detail View of one of the coils.

In the said drawings like parts are represented by similar letters ofreference.

The armature-shaft is marked a, and the commutator is marked 12. I haveshown the disks 0 strung upon the armature-shaft a. The drum cl on thearmature-shaft and the casing cl for the fan care so arranged on thearmature-shaft that they hold the disks together compactly, as shown inFig. 2. The teeth on the periphery of the disk-Wheels thereby formslots, which are insulated, and the coils f are assembled on thearmatureshatt by having the sides f and f fit with corresponding slotsformed by the teeth of said disks.

As shown'in Fig. 1, there is formed in the inner part of the drum d, byreason of the partitions d 01 and 02', three openings. The

openings formed in the disk-wheels (marked 0, c and 0 form, with theopenings through the casingof the drum, three chambers,which are for theintake of air for the fan e. The fan 6 in rotating with thearmature-shaft a causes a current of air to circulate through the coils,thus preventing heating of the armature.

It will be seenthat in constructing my device the drum (1 and the fan 6not only bind the disks 0 together, but also provide supports for theends of the coils, the coils being bound thereto by the bands f, and thecoils are also preferably bound to the disks by the bands f The casing dof the fan I preferably form with a solid web or back (1 so as tointerpose a wall between the armature and the commutator, and the wingsd of the fan extend laterally beyond the periphery of the casing d, sothat by forming and placing the coils as shown the fan will dischargeradially through the openings 0 between the coils. These openings 0formed at the angle 0 of the coils by the lapping of the coils whenplaced on the disks, while individually of comparatively small area, yetin the aggregate (there being forty-eight openings in the one shown inthe drawings) form an ample discharge. The periphery of the drumd,abutting'against the disk, will not permit circulation through theopenings formed in that end of the coils, the draft or intake-beingconfined to the openings provided by the perforations d 61 and d of thedrum, and the openings 0, c and c of the disks, and the discharge beingthroughgthe openings 0 in the coils, as described. I

It will be seen that I provide a fan at one end of the armature soconstructed-as to interpose a wall between it and the commutator andform a support for one end of the coils and to discharge through theopenings in the coils between the armature and the commutator, therebynot only freeing the armature of heat, but in such a manner as toprevent the heat of the armature being conducted into the commutator.

Having thus described my invention, I claim 1. In an armature, thecombination of the disks, a fan at one end of said disks, openingsthrough said disks forming the intake for said fan, coils on said disksextending over said fan arranged With openings forming the discharge forsaid fan, substantially as specified.

2. In an armature, the combination of the coils-support and commutator,and a fan between said support and commutator, openings through saidsupport forming the intake for said fan, coils on said support alsosupported by said fan and arranged with openings forming the dischargefor said fan, substantially as specified.

3. In an armature, the combination of the armature-shaft, disks, a drum,a fan and a commutator fixed on said shaft, said drum abutting saiddisks upon one side and said fan upon the other between said disks andcommutator, coils upon said drum, disks and fan, said drum and diskshaving corresponding openings therein forming the intake for said fanand said coils arranged with openings therein, forming radial dischargefor said fan, substantially as specified.

4-. In an armature, the combination of the armature-shaft, disks, adrum, a fan and a commutator fixed on said shaft, said drum abuttingsaid disks upon one side and said fan upon the other between said disksand commutator, coils upon said drum, disks and fan, said drum and diskshaving corresponding openings therein forming the intake for said fanand said coils arranged with openin gs therein, forming radial dischargefor said fan, and an intervening wall between said fan and commutator,substantially as specified.

In testimony whereof I have hereunto set my hand this 31st day of July,A. D. 1902.

OLIVER F. CONKLIN. Witnesses:

PERCY NORTON, OHAs. I. WELCH.

